EP0199156A3 - Process for manufacturing foundry moulds by compacting a granular moulding material - Google Patents

Process for manufacturing foundry moulds by compacting a granular moulding material Download PDF

Info

Publication number
EP0199156A3
EP0199156A3 EP86104570A EP86104570A EP0199156A3 EP 0199156 A3 EP0199156 A3 EP 0199156A3 EP 86104570 A EP86104570 A EP 86104570A EP 86104570 A EP86104570 A EP 86104570A EP 0199156 A3 EP0199156 A3 EP 0199156A3
Authority
EP
European Patent Office
Prior art keywords
model
molding material
final
compacting
compressed gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86104570A
Other languages
German (de)
French (fr)
Other versions
EP0199156A2 (en
Inventor
Norbert Damm
Ernst Schmitt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BMD Badische Maschinenfabrik Durlach GmbH
Original Assignee
BMD Badische Maschinenfabrik Durlach GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BMD Badische Maschinenfabrik Durlach GmbH filed Critical BMD Badische Maschinenfabrik Durlach GmbH
Publication of EP0199156A2 publication Critical patent/EP0199156A2/en
Publication of EP0199156A3 publication Critical patent/EP0199156A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor

Abstract

Bei einem Verfahren zur Herstellung von Gießformen durch Verdichten von schüttfähigem Formstoff über einem auf einer Modellplatte innerhalb eines Formraums angeord­ neten Modell wird zunächst der Formraum bis zu einer Teilhöhe im Bereich der Oberkante des Modells in Wenig­ stens einer Stufe gefüllt und der Formstoff nach jeder Füllstufe unter Einwirken von Druckgas hoher Geschwindig­ keit verdichtet, danach in einer Endstufe weiterer Formstoff bis zu einer für die endgül tige Form notwendigen Füllhöhe aufgegeben und wiederum durch Druckgas oder durch Pressen verdichtet. Durch die Auftrennung des gesamten Verdichtungsvorgangs in wenigstens zwei Stufen mit einer Verdichtung jeweils bis zur Enddicte wird eine einwandfreie und gleichmäßige Verdichtung auch bei komplizierten Mod­ ellen und hoher Modellplattenbelegung erzielt. In a process for making molds by compressing pourable molding material over a arranged on a model plate within a molding space Neten model is first the mold space up to a Part height in the area of the upper edge of the model in little filled at least one step and the molding material after each Filling stage under the action of compressed gas at high speed compacted, then further molding material in a final stage up to a level necessary for the final shape abandoned and again by compressed gas or by Presses compacted. By separating the whole Compression process in at least two stages with one Densification to the final dictate is a flawless and even compression even with complicated mod and high model plate occupancy achieved.

EP86104570A 1985-04-20 1986-04-03 Process for manufacturing foundry moulds by compacting a granular moulding material Withdrawn EP0199156A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853514349 DE3514349A1 (en) 1985-04-20 1985-04-20 METHOD FOR THE PRODUCTION OF CASTING MOLDS BY COMPRESSING SHOETABLE MOLDING MATERIAL
DE3514349 1985-04-20

Publications (2)

Publication Number Publication Date
EP0199156A2 EP0199156A2 (en) 1986-10-29
EP0199156A3 true EP0199156A3 (en) 1987-11-25

Family

ID=6268707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104570A Withdrawn EP0199156A3 (en) 1985-04-20 1986-04-03 Process for manufacturing foundry moulds by compacting a granular moulding material

Country Status (5)

Country Link
EP (1) EP0199156A3 (en)
JP (1) JPS61245945A (en)
DD (1) DD257975A5 (en)
DE (1) DE3514349A1 (en)
DK (1) DK178586A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH672270A5 (en) * 1986-12-17 1989-11-15 Fischer Ag Georg
JPS6478654A (en) * 1987-09-19 1989-03-24 Nissan Motor Full mold molding method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062331A1 (en) * 1981-04-02 1982-10-13 BMD Badische Maschinenfabrik Durlach GmbH Method and apparatus for pneumatically compacting moulding sand

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55144359A (en) * 1979-04-24 1980-11-11 Sintokogio Ltd Mold molding method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062331A1 (en) * 1981-04-02 1982-10-13 BMD Badische Maschinenfabrik Durlach GmbH Method and apparatus for pneumatically compacting moulding sand

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 14 (M-52)[686], 28. Januar 1981; & JP-A-55 144 359 (SHINTO KOGYO K.K.) 11-11-1980 *

Also Published As

Publication number Publication date
EP0199156A2 (en) 1986-10-29
DK178586A (en) 1986-10-21
JPS61245945A (en) 1986-11-01
DE3514349A1 (en) 1986-10-23
DK178586D0 (en) 1986-04-18
DD257975A5 (en) 1988-07-06

Similar Documents

Publication Publication Date Title
US3354248A (en) Process and machine for producing multidimensionally molded articles
ATE54849T1 (en) METHOD OF FORMING METALLIC POWDERS BY FREEZING AND PRESSING.
EP0199156A3 (en) Process for manufacturing foundry moulds by compacting a granular moulding material
EP0406783B1 (en) Process for making hollow articles from lignocellulosic fibres
EP0017902B1 (en) Process for producing a refractory foundry mould
US3387645A (en) Shaping method including fixing the position of predetermined points in particulate mold material
DE3900324C2 (en)
CN219132973U (en) Mould for mould pressing composite bipolar plate
SU1733185A1 (en) Method of making casting molds
DE122115C (en)
DE2313960C3 (en) Process for pressing metal powder and negative form for carrying out the process
DE2641975A1 (en) Moulding porcelain or ceramic articles - using porous sintered metal moulds which are first evacuated, then fed with compressed air
DE3929276A1 (en) Formwork and mould-work procedure in mfr. of precast concrete units - uses clay for intricate features and inserts and flow chart programme included
DE579534C (en) Process for the production of particularly dense or particularly thin-walled molded articles
DE19511922A1 (en) Soft elastic mouldings useful as a basis for flower arrangements etc.
CN1301210A (en) Method for producing shaped bodies
CH682987A5 (en) Prepn. of mould for casting - by filling with green sand, initially compressing with hydraulic press, then final compressing
EP0344225B1 (en) Process for manufacturing a casting mould
SU1063530A1 (en) Method of producing mouldings and cores
EP0285821A3 (en) Process and device for compacting moulding materials for foundry moulds
SU1699698A1 (en) Device for manufacture of flaskless moulds by three-dimensional extrusion
DE713877C (en) Two-stage pressing process for the production of molded parts with holes or recesses of any shape
JP2990538B2 (en) Method and apparatus for manufacturing powder rubber composition block
SU810360A1 (en) Method of producing casting moulds
ATE70750T1 (en) METHOD OF COMPACTION OF MOLDING SAND.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB IT LI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19880111

17Q First examination report despatched

Effective date: 19880630

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19881105

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DAMM, NORBERT

Inventor name: SCHMITT, ERNST